One-Way Traffic Control Ahead on State Route 174


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District: District 3 - Marysville
Contact: Raquel Borrayo
Phone: (530) 701-5209



Grass Valley – Caltrans is alerting motorists to expect one-way traffic control next week on State Route 174 in Nevada County for remaining roadway improvements on a safety project.

One-way traffic control will be in effect between 6 a.m. and 6 p.m. Wednesday, June 1 through Friday, June 3. Motorists are advised to anticipate 20-minute delays when traveling between You Bet Road and Maple Way. The schedule is subject to change based on weather, availability of supplies or other unexpected events.

Construction crews will be painting remaining shoulder areas and performing minor paving and grading repairs to the roadway following emergency tree removal work earlier this year along the highway.

The $27.4 million safety improvement project, which began in August 2020, has realigned several curves, widened shoulders, added a southbound left-turn pocket at Greenhorn Access Road and improved the clear recovery zone for errant drivers to regain control. DeSilva Gates Construction of Sacramento is the primary contractor for the project.

Caltrans advises motorists to “Be Work Zone Alert.” The department will issue construction updates on Twitter @CaltransDist3 and on Facebook at CaltransDistrict3. For real-time traffic, click on Caltrans’ QuickMap or download the QuickMap app from the App Store or Google Play.


Map showing the location of a safety improvement project on State Route 174 in Nevada County. A two-mile segment of highway between You Bet Road to the north and Maple Way to the south was improved, which includes improvements to the Greenhorn Access Road intersection.